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Algebra-Unit 1

Unit 1 Vocab

TermDefinition
proportion an equation that states that two ratios are equal
cross products the product of numbers on the diagonal when comparing two ratios
ratio a comparison of two quantities by division
rate a ratio that compares two quantities measured in different units
unit rate a rate in which the second quantity in the comparison is one
conversion factor a fraction whose numerator and denominator represent the same quantity but use different rates; the fraction is equal to 1 because the numerator and denominator are equal
unit analysis a method of changing one unit of measure to another
literal equation an equation where variables represent known values
formula a rule showing relationships among quantities
equivalent equations equations having exactly the same solution
inverse operations operations that undo each other
simplify to write a fraction or expression in simplest form
algebraic expression an expression that contains at least one variable
like terms two or more terms that have the same variable raised to the same power
evaluate to find the value of a numerical or algebraic expression
real numbers a rational or irrational number
rational number any number that can be expressed as a ratio of two integers
irrational number a number that cannot be expressed as a ratio of two integers or as a repeating or terminating decimal.
square root a number that is multiplied by itself to form a product
perfect square a number that has integers as its square roots
Created by: heather.lander